Hay feeder



FIG. 1 is a perspective view of a hay feeder showing my new design;

FIG. 2 is a front elevational view thereof, the rear elevational view being the same;

FIG. 3 is a right side elevational view thereof; the left elevational view being the same;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a hay feeder, as shown and described. 